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Scilab help >> Elementary Functions > Floating point > frexp

frexp

dissect floating-point numbers into base 2 exponent and mantissa

Calling Sequence

[f,e]=frexp(x)

Arguments

x

real vector or matrix

f

array of real values, usually in the range 0.5 <= abs(f) < 1.

e

array of integers that satisfy the equation: x = f.*2.^e

Description

This function corresponds to the ANSI C function frexp(). Any zeros in x produce f=0 and e=0.

Examples

[f,e]=frexp([1,%pi,-3,%eps])

See Also

  • log — natural logarithm
  • hat — (^) exponentiation
  • ieee — set floating point exception mode
  • log2 — base 2 logarithm
<< floor Floating point int >>

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Last updated:
Wed Oct 05 12:09:38 CEST 2011